Multiple drink mixing machine



E. S. PRINCE ET AL MULTIPLE DRINK MIXING MACHINE Nov. 28, 1950 5 Sheets-Sheet 1 Filed Oct. 4, 1945 INVENI'OR Nov. 2s, 195o Filed 001'.. 4 1945 E. s. PRINCE r-:TAL 2,531,989

MULTIPLE DRINK MIXING MACHINE 5 sheets-sneeze Noi'za, 195o E, s. PRINCE ETAL 2,531,989

MULTIPLE DRINK MIXING MACHINE Fled`0ct'. 4, 1945' 5 Sheets-Sheet .'5

Nov. 28, 1950 E. s. PRINCE Erm. 2,531,989

MULTIPLE DRINK MIXING MACHINE 5 Sheets-Sheet 4 Filed Oct. 4, 1945 Nov'. 28, 195D Filed Qc. 4`l 1945 E. s. PRINCE ErAl. 2,531,989 l MULTIPLE DRINK MIXING MACHINE 5 Sheets-Sheet 5 l*51.540 Je@ INVENToRs,

atentecl ov. 28, Q

UNITED STATES PATENT QFFC 2,531,989 MULTIeLE DRINK MIXING MACHINE- Earl S. Prince andE .lohn Brothferidge, Rocklalalls",vl

Ill., assignors to Prince Castle Manufacturing Division, Inc., Sterling, Ille, a corporation of Illinois Application October 4, 1945, Serial No. 621131043;

10 Claims. (Cl. 259-131) This invention relates to multiple drink mixing machines, and the object of the present invention is to provide a multiple drink mixing machine having a base having an upstanding column from the upper portion of which depend a plurality of spaced apart, rotatable drink mixing spindles, together with associated means on the column adapted to receive a plurality of cups into each of which a rotatable mixing spindle is adapted to depend, and when rotated, to mix the drink in the cup, and wherein the base of the machine is formed as a stationary tray to receive the cups when not in drink mixing position and wherein the tray is arranged. to catch the dripping from any one of the spindles, thus ensuring cleanliness and more sanitary conditions, and wherein the mixer likewise has better stability because of the tray base and does not have to be held with the hand when the cups are put in position.

Another object of the invention is t'o provide a machine of the forego-ing character which eliminates the necessity of supporting the mixer when the cups are positioned with the spindle depending ther-cinto and ready for mixing.

Another object of the present invention is to provide a multiple spindle drink mixer which eliminatesl the tendency of the upper part of the mixer carrying the rotatable mixing sp-indles to turn relatively to the base due to the starting torque of the motor when any of the individual spindles are rotated by mixing, whereby the location of any particular spindle and its associated mixing cup is maintained and thereby confusion is eliminated.

Another object 0i' the invention is to provide a multiple drink mixing machine having a base and a column upstanding therefrom, which column supports the mixing head including a plurality of spaced apart, depending, rotatable mixing spindles, together with means for selectively driving them, and wherein the base is formed as a tray not only to catch any dripping and support the cups when not in mixing position, but also wherein the outer edge of the base acts as a guard for protecting the depending spindles during shipment and use.

lYet another blo-ject of the invention resides in providing a multiple drink mixing machine having a stationary base, preferably in the form of a tray from which at one end rises an upstanding column dat at the back and which column sup-ports a depending head carrying a series of spaced apart, depending mixing spindles, there being means in the head for selectively driving .the spindles from a vpower source, and by means or" which arrangement the flat back surface of the upstanding column is adapted snugly to t against a flat wall for compactness and support, or whereby two of the units may be placed with the flat portions of the columns back to back in compact relationship to provide a substantially circular battery of depending, spaced apart spindles and a pair ci oppositely extending drip catching and cup receiving trays, or alternatively whereby the base of one unit may be superimposed upon the flat top surface of the head of another unit or upon an intervening support whereby to provide a superimposed pair ci units, each lying with its i'lat back disposed against a common vertical wail surface and thereby providing a compact and convenient arrangement of two machines to give double the capacity of a single machine, but in a compactly arranged combination.

Still another object of the invention resides in providing a machine of the foregoing character wherein the upstanding column of its base is provided with a flat back surface whereby the machine may be stably placed upon its. back for cleaning, handling and transporting, and wherein the edge of the base projects beyond the spindles toprotect them from breakage.

Yet another object of the invention resides in providing a multiple drink mixing machine wherein the base is stationary and is preferably flat in the form of a tray, and wherein the base is provided with an upstanding column having a depending stationary head overhanging out-` wardly therefrom to overli-e the base and supporting a plurality of spaced apart, rotatable spindles, the entire construction ensuring that all theseparate rotatable mixing spindles are accessible for use and because the position of each spindle is stationary with respect to the base there is no orbital mo-vement cf the spindles and hence no confusion in relocating particular drinks corresponding to particular mixing spindles being used,

Yet another object of the invention. resides in i providing a multiple spindle drink mixing machine incorporating a base, an upstanding column and a head carried by the column which includes a driving motor and a relatively large driving wheel around the periphery of which are disposed a series of spaced apart smaller driven wheels mounted on individual mixing spindles depending from the head and wherein the driving wheel vis provided With means providing a high traction peripheral drive for the individual spindle wheels,

.and likewise providing quiet operation, the elimination of work flat spots on the drivenV wheels, the too frequent replacement of individual driven wheels, and wherein the individual spindle rotation can be controlled at the point of disengagement by the weight and type of the driven wheel and so also whereby the replacement of the one larger driving wheel eliminates the necessity of replacing a plurality of individual driven wheels on the mixing spindles.

Yet another object of the invention resides in providing a mixing spindle construction including a single upper ball bearing to take the thrustofY the mixing spindle, a lower sleeve bearing acting as a guiding means for the mixing spindle, the provision of a non-corrosive material associated with this lower bearing due to moisture from the liquid being mixed, the utilization ofV a heavier spindle shaft between the bearings, thegprovision of a so-called slinger wheel associated with the l mixing spindle for returning the oil into the lubricating chamber of the bearing rather than having the oil leak down into the liquid being mixedv in the cup, and by which construction, conversely, the liquid being mixed is kept out of the bearing.

Ylet another object of the invention resides in the provision of a large motor-driven driving wheel for the separate spindles wherein the drivingl wheel is formed of sheet metal and is provided with a replaceable tire for engaging the re1- atively smaller driven wheels of the separate spindles.

Yet another object of the invention resides in .providing a housing and support mechanism for the motor and the driving spindles, formed of sheet metal and arranged ruggedly to receive and support a spider casting having means thereon for radially supporting a plurality of mixing spindles adapted to be driven by a centrally disposed, motor-driven, larger friction wheel, all the parts being mounted in the dirt-proof sheet metal housing, and thereby promoting lightness of Weight and sanitation in the entire structure.

Another object of the invention resides in providing a special type of spring mounting for the mixing spindle which serves to eliminate wear, reduces the number of parts, adds to the rigidity of the, mixing spindles, and assists in causing the automatic disengagement of the spindle driven wheel from the main power-driven wheel when the cup is removed from receiving position.

Other and further objects of the inventtion will bel apparent from the following specification when taken in connection with the accompanying drawing, wherein:

VFigure 1 is a front view of an improved form of the multiple spindle drink mixing machine;

Figure 2 is an arrangement showing the utilization of two of the units in vertically disposed position;

Figure 3 is a view showing two of the units arranged in back to back position;

Figure 4 is a vertical section on the lineY 4 4 of Figure 1;

Figure 5 comprises a collection of perspective views of the various parts of the housing Construction and spider of the device;

Figure 6 is a plan section taken on the line 6--6 of Figure 4;

c Figure '7 is a plan section on the line T-T of Figure 4;

' Figure 8 is a view showing the mixing cup in driving position;

'Figure 9 is a vertical section taken on the line 5 9 of Figure 6;

Figure 10 is a plan section taken on the line lil-Ill of Figure 9; and

Figure ll is a perspective view of the spring mounting.

Referring now to the drawings in detail, the machine ink general comprises a flat stationary base 2. As` shown in Figure 5, this.v base 2 is generally circular although it may be substantially rectangular, and is provided with a depressed portion and a surrounding upstanding rim li providing a shallow tray. By reference to Figure 4 it will be noticed that the rim 4 of the tray projects outwardly beyond the vertical longitudinal axis of the center mixing spindle, whereby the drip from the mixing spindle will be caught by the tray.

This tray is a casting of suitable metal and is formed at its rear with a preferably integral vertical, hollowl upstanding column providing a front wall e and a flat rear wall 3. About midway of its height the front and rear walls are connected by a transverse, horizontal, integral wall IB forming a horizontal support for the mix-v ing head and housing. This wall Il) is provided. with two horizontally disposed, spaced, threaded.- ly bored lugs I2 and lli at opposite sides thereoi,v asshown in Figure 5, and which lugs are set backv a slight distance from the front wall G of the bottom portion of the column. Above the trans.,- verse wall l@ the column continues upwardly as at IS and terminates in an inwardly extending' horizontal flange i8. The column is provided with the upstanding side walls 2i! and 22 andL from the transverse wall Iii upwardly to the. transverse upper wall l5 is open at the front, and is closed by the bottom front wall ii.

A mixing head is supported from this column.v The head includes a motor housing comprising a preferably sleeve-like portion 24 of sheet metal and a pair of spaced, rearwardly depending flanges Sii and 32 adapted to be fastened in position on the transverse horizontal wall Hl and within the side walls 26 and 22 and the top wall i8. In addition there is provided a top horizontal plate 3e having a central opening 38 and an upstanding peripheral ange te around the opening. The plate 35 is provided with a peripheral upstanding larger flange 42 and a series of, spindle holes 4d, d6, d8, 5B and 52 and a series of smaller holes 54, 5&3, 58, B0 and t2. In addition the rear portion of the plate le is provided with the two holes S4 and S6.

A sheet metal motor plate '12 is provided with a relatively large aperture 'lli at one end and four holes 16, '18, 8@ and 82. In addition, the motor plate is provided with an upstanding integralA rim 811. This rim is adapted to seat in the upstanding ange liti of the top plate. The motor plate is adapted to carry a spider comprising an integral metal casting which comprises a circular rim 8S provided with ve upstanding posts 8B, 99, 92, 94 and S6. These posts are Vspaced equidistantly around the forward arcuate portion of the rim 86 and in addition each post includes an outstanding radially projecting tongue or lug 98, IE6, m2, iM, and l. The rim 86 is likewise provided with a series of holes |68, H9, H2 and Il@ which holes register with the holes '16, 78, 80 and 82 of the motor plate. Each upstanding post is in turn provided with a horizontally extending hole H6, H8, l2, |22 and l24, hereinafter described. As shown clearly in Figure 4, the anges 84 of the motor plate, and the vertical flanges 36 and 32 and the ange 4l] of the top plate, are positioned in contacting relation and are welded together. The top plate is bolted as at 61 through the holes 64 and 66 of the top plate into threaded holes I6 in the upper transverse horizontal partition I8 of the base whereby in conjunction with the fact that the bottom portions of the lianges 3|] and 32 are bolted as at 36 and 38 into'the threaded lugs I2 and I4 of the bottom horizontal ilange I0 of the base, means is provided for effectively and rigidly supporting the top plate, the motor plate, the spider and motor housing, from the base. The same bolts ||5 that attach the spider 86 to the motor plate I2 likewise pass into the top portion of the motor and aix it rigidly to the motor plate and spider whereby the motor I2| is mounted in the head with the motor spindle |23 upstanding therefrom. The bottom of the motor is provided with electrical conduits |25 and |26, the latter connecting with a switch |26 having a control member |39 which projects beyond the lower end of the skirt portion 24 of the housing. The electrical cord |25 passes downwardly through an opening |32 in the flange I0 of the base and thence downwardly through the column between the front and back portions 6 and 8 respectively, and thence out through the open bottom of the column for connection to a source of current.

IAs shown clearly in Figure l1, the outwardly extending tongue |62 of the spider is provided with a flat portion |34 and is provided with a pair of fastener openings |36 adap-ted to have fastened thereto by means of bolts |44 a tempered ilat spring metal piece |46 which in turn is provided with holes |48. Screws |50 pass through this plate and thread into holes |52 formed in a laterally projecting lug |54 of a circular bearing housing |56 whereby the bearing housing is resiliently mounted on the spider by means of the spring plate |46. The bearing housing is adapted to project through any one of the openings 44, 46, 48, 50 and 52 of the top plate. Each of these holes is shown as provided with an inturned, relatively resilient annular flange which more or less resiliently and snugly nts around the lower portion of a bearing sleeve carried by the housing |56 and hereinafter described. The bearing housing at its upper end includes a pair of perforated ears |58 through which, by means of a pin |59, is pivotally connected a link |66 perforated at its outer end to receive a pin |62 which pivotally connects the link |66 with another link |64in turn pivoted as at |66 in the hole of one of the uprights or standards 94 carried by the spider 86. The two links |66 and |64 together with the three pivots |66, |56, and |62 form a toggle joint link. Passing over the pin |62 is the slotted portion |63 of an extension |16 of a plunger |12. This punger is provided on its bottom portion with a peculiarly formed slot |14 conformed to receive the rim of a cup in the manner shown substantially in the Brotheridge Patent 2,218,808 of October 22, 1940. In addition, surrounding the upper portion of the plunger |12 is a coil spring |16 which has its bottom end contacting against a shoulder |18 on the plunger portion and has its top portio-n pressing against the underside of the two links |66 and |64 about the pin |62. The function of the spring is normally to force the plunger |12 downwardly to a point where the pivot |62 is slightly below the horizontal level of the two centers of the pivots |59 and |66 whereby the toggle is in a positionk which tends to keep it as shown in Figure 9. however, upon raising of the plunger |12 by the insertion of the upper edge of the rim of the cup in the slot |14, the plunger |12 is moved upwardly, compressing the spring |16 and forcing the linksv |66 and |64 of the toggle upwardly. Since the pivot point |66 is fixed, the other pivot |59 will be pulled inwardly toward the pivot |66 which will thus pull the bearing housing |56 inwardly.

The upper end' of the bearing housing is provided with a flange seat to receive a ball bearing |82 to take the thrust of the mixing spindle |86 against the large driving wheel. A guard |88 closes the opening about the bearing |84. The upper end of the mixing spindle |86 is threaded as at |96 and carries a preferably metal friction roller |92. A cap |94 is'threaded on the spindle |86 to hold the roller |92 in place. The central portion of the bearing housing |56 is formed as a lubricant reservoir. The bottom portion of this housing is closed by a hard Babbitt or bronze bearing |98 and in addition there is a slinger means 260 which is pressed onto the spindle and against the shoulder portion 262 of the spindle |86. This slinger means includes an upstanding circular, outwardly extending flange 204, the outer end of which overlies an inwardly and upwardly projecting iange 256 on a sleeve-like closure 208 attached to the bottom of the bearing and passing snugly through oneof the openings such as 50 in the top plate. This slinger means 266 acts as a device for keeping the drink out of the bearing as the slinger rotates at high speed, and by centrifugal force will prevent the drink from entering the bearing |98 while the spindle is in motion. This sleeve-like closure 206 in effect forms an oil trough. There is a wick 2|6 which passes through an opening 2|2 in the bottom of 4the tubular bearing housing |56 and extendsv downwardly into this sleeve-like portion 266, the action being such that any excess oil escaping past the bearing will collect inthe trough 266 and by capillary attraction will be conducted back up into the oil vreservoir 2|0. The bottom of the spindle is provided with the usual type of mixing devices 2|2 and 2|4 affixed in any desired manner and any desired conguration thereon and thereinto. It will be noted that there are preferably live oi these mixing spindles projecting downwardly through the bottom of the housing and that they `are equally spaced in a half circle and extend radially of the central motor spindle |23. It will be understood each one of the mixing spindles |86 has on its upper end a. metal driving wheel |92.

It will thus be seen that the sleeve-like closure 208 attached to the bottom of the bearing housing |56 of each mixing spindle |86, passes snugly through one of the holes 44 to 52 inclusive of the top plate, and since this top plate 36 is formed of sheet metal and the peripheral edges of these holes are slightly rounded or bent upwardly as shown in Figure 9, a certain resiliency is imparted to the edges of these holes through which the cylindrical sleeve-like closure 208 snugly passes. This construction, in combinatio-n with the resilient mounting of the lug |54 of the bearing housing on the leaf spring |46, provides for a combination of bodily lateral movement and pivotal movement of the upper portion of the bearing housing 56 relatively t0 the rim 246 of the master driving wheel Whereby when the cup is inserted in the socket |14 and an upward push is imparted to the cup. the

'assises vi? toggleiink mechanism will be moved to the posiftion shown in Figure 8, against Vthe tension of the spring H16 and also the spring |16, to move the driven `pinion i92 into driving contact with theperiphery 24E of the master wheel. This con.- struction thereby provides a dust-tight means for mounting each bearing housing within Athe mixing head, while permitting a shifting of the pinion carried by the bearing housing into and -out ol Contact with the master driving wheel, .g

:and this is vaccomplished. withoutvhaving to form ,the holes '$3 to 52 extra large, since there is no undue lateralmo-vement of the bearing housing and the sealing sleeve 26S with respect to the `sheet metal housing portion d2 of the mixing head.

The' central motor spindle i 23 has afxed thereto a relatively larger, centrally disposed driving wheel 2i5 which the present instance is preferably formed of sheetmetal. This driving wheel 2I5 iscomprised of an upper sheet metal disc 2-ii and a lower sheet metal disc 21S. These two discs are secured to the spindle by means of a central circular block 22S having an outstanding -lower flange 2272 provided with suitable threaded perforations. In addition there is a spacing ring 22" likewise having perforations, and an upper, iring-like cap 226. A series of bolts or screws 228 pass through registering openings in the Yspacing ring 221i and into the threaded ange `222 vof the block 226. The inner circular edges of the two discs 2id and 2 I8 are received between the upper edges of the flange 222, the lower edges ofthe spacing ring 22d and the upper edge of the 'spacing-ring'ZEd and the top cap 225, whereby the f two disc-like portions are thoroughly clamped rotatably tothe motor spindle. The upper porvtion of the motor spindle `is threaded and is adapted to receive a wheel puller nut 23d which passes through an opening in the upper ringlike cap 225. The nut 256 has a cap over it and `it acts as a wheel puller nut when it is turned oif the spindle. -It pulls the klarge driving wheel oi the tapered spindle. The two discs Zit and 2|8 'are shaped to converge in the manner shown in Figure 4. They-extend slightly upwardly and meet at an annular locus 232 from which location A'they 'extend in parallelism and in juxtaposed, overlapping relation as at The portions in Contact as at 23e are welded together whereby to form an integral, `rugged driving disc. Each disc is provided `with one half portion of a rim receptacle such as 235 and 233, which is adapted to receive a rubber tire'or rim 2% which may be removed for replacement or repair.

A sheet metal closure 2d? having a depending circular flange 2M extends over the top of the housing and carries fan inwardly extending lip v2156 which lies Within the opstanding rim 132 of the top plate whereby to form a dust-proof 'casing for the top of the housing. The top of ythis lupper casing M2 is iiat. From an inspection -oi Figures -2 and 3 it will be notedthat by reason of the fiat construction'oi the top two of these units may be superimposed for a vertical )tier arrangement with the flat backs of the columns of each unit atly against the vertical side wall, or alternatively, the two units may be disposed back to back, as shown in r`Figure 3, to provide a substantially continuous double machine. In some instances, in the back to back arrangement shown in VFigure 3, the upright columns may be provided with outstanding lugs whereby the twocolumns 'may be bolted, fastened or latched together to form4 a compact unit as shown in Figure A3. Alternatively, four hixes maybe placed ina group. n

ln'any event,- it will be noted by reasonrof the tact-that the tray 2v is stationary and that thede'- pendingspindles do not move-orbitally 'with re'- spect to the base,-a very convenient arrangement isprovided whereby when a drink is put under any particular Vspindle and moved upwardly 4vinto the position so -that the bottom of the cup 2,48 is caught by the lip 25e of the support stud Y252 carried by the bottom of the shirt portion ofthe housing, the cup willV be vdisengageably held-inposition with the spindle /l projecting downwardly'thereinto. Hence this 'cup will remainlin this particular location so that an operator will always be able to locate Vand distinguish that particular'cup from any other cup. -By this means the location ofa cup once put into the machine is Adeiinitely -ixed at all times until removed.

, The pairs of vertically elongated ribs -251 are formedin spaced 'apart relation uponthe sheet metal fhousing 2d just opposite Veach one of the mixing spindles and relatively close to the position of the-depending'plungers ile. The Y*flower ends -of these ribs, as shown in Figure 9, are

tapered as shown at 255 Vso that as the cup yis pushed upwardly the uppcrelip of the vcup will strike this tapered surface 255 and *guide rthe upper lip of the cup into the slot iil of the plunger i12. Therefore these ribs also act to guide Vthe edge of the cup into the cup holder and to guide the cup into position for mixing. The spacing between the ribs forms a vertical track -for the periphery of lthe cup so that the e of the circular driving wheel whereby that particular spindle is directly rotated at a relatively rhigh rate of speed. Each particular spindle is 'thus capable of being selectively controlled by engagin'gcr disengaging its driving wheel from the 'constantly rotating central driving wheel formed by the discs 2id and ZlB and the tire Zilli. Wlfin the cup is released and moved downwardly the spring mounting plate '148, which has been put y under tension, will straighten out and carry the smaller driving roller 92 out of contact with vthe rotating central driving wheel fill, whereby to assist the spring HS in this purpose, and this spring i i6 of the plunger then carries the central pivot pin 52 downwardly below the level of the pivots IEB and H39 whereby to lock the small roller out of driving engagement so that it canvnot be inadvertently thrown into engagement uunless another cup is inserted into mixing position.

Obviously the invention is not limited to the specific details of construction disclosed herein but is capable of other modifications and changes without departing from the spirit and scope of the appended claims.

Having thus described our invention, what we claim as new and desire 'to secure by Letters Patent is:

1. A multiple spindle drink mixing machine comprising a baseincluding a relatively dat horizontal 'tray Vand an upstanding column, said co1'- umn having upper and lower spaced apart horizontally extending flanges, a top plate having a central aperture and a marginal upstanding flange and a plurality of spaced apart spindle openings, the opening of the top plate having an upstanding ange, a motor plate having an upstanding ange adapted snugly to fit in the upstanding ange of the top plate, said motor plate having an opening registering with the opening in the top plate, a spider having a circular rim Vportion and a plurality of radially extending, spaced apart, upstanding brackets and outstanding tongues or lugs, means for securing the spider on the motor plate, a motor mounted on the spider with the shaft of the motor projecting upwardly through the opening in the spider and through the opening in the motor plate, and a housing surrounding the motor, a relatively large driving gear mounted on the upper portion of said motor shaft and a plurality of mixing spindles mounted in said top plate, means forming a toggle joint connection between the upper portions of the upstanding supports on said spider and each of said mixing spindles, a plunger mechanism connected to the central portion of said toggle joint and including a plunger depending downwardly through said top plate, a spring for urging said plunger downwardly to hold said toggle in extended position, a plurality of cup rests mounted on the bottom of said housing, a plurality of relatively smaller driven pinions one mounted on each upper end of said mixing spindles, a spring mounting comprising a leaf spring rigidly connected to the outer end of each rearwardly extending vlug on the spider and con- :l

nected to a spindle whereby resiliently to mount each of the wheels on said spindles normally out of engagement with said central driving wheel and whereby upon operation of said toggle mechanism said small wheels will be thrown into and out of engagement with said main driving Wheel.

2. A spider casting for a multiple drink mixing machine comprising a one piece metal casting comprising a flat ring having integral, upstanding, spaced apart standards projecting upwardly therefrom, said ring at the base of each standard having an outwardly extending tongue, the central portion of which curves upwardly and thence downwardly on opposite sides of and outwardly of said upstanding standards or brackets, the plane of the undersurface of each tongue being substantially adjacent the plane of the` upper surface of the ring.

3. A spider casting for a multiple drink mixingY machine comprising a o-ne piece metal casting comprising a flat ring having integral, upstanding, spaced apart standards projecting upwardly therefrom and adjacent, outwardly extending tongues, the central portions of which curve upwardly and thence downwardly on opposite sides of and outwardly of said upstanding standards or brackets, and a flat piece of spring metal secured to the outer ends of each of said tongues, a support for said rim, a motor mounted on said support and ring, a mixing spindle including a bearing housing at its upper end, said bearing housing having means mounted on the outer end of said spring plate, said mixing spindle carrying a driven pinion, and a master drive pinion mounted on said motor shaft and means for shifting said bearing housing laterally into contactV with said master drive wheel whereby upon release of said means said spring means will shift said spindle pinion out of contact with said master driving Wheel.

4. In a multiple spindle drink mixing machine, the combination of a base having an upstanding column, a sheet metal housing mounted on said column of said base and extending laterally from the column and overlying said base, an apertured top plate of sheet metal having a central opening, a motor plate of sheet metal mounted in said opening, said motor plate and top plate and housing having interengaging flanges, and means for fastening said interengaging flanges to said upstanding column whereby rigidly to mount the same on said column, a spider casting mounted on said motor plate, said casting having an opening registering with the opening in said motor plate, the opening of said motor plate registering with the opening in said top plate, a motor mounted' on said motor plate with the drive shaft of the motor projecting therethrough and with the m0- tor depending therefrom, standards radially mounted on said spider about the central axis of said motor, a spring mounted on each standardv and a plurality of mixing spindles each having a bearing housing on its upper end through which the mixing spindles pass and in which they are rotatable, each bearing housing being mounted uponone of said spring plates, a master'drive wheel mounted on the motor shaft and a pinion mounted on each mixing spindle, and means' interconnecting a bearing housing on each spindle with a standard on the spider for selectively shifting the driven pinion on the mixing spindle with said motor driven master wheel.

5. A multiple spindle drink mixer comprising a' relatively nat, shallow basal tray having along one edge at the central portion thereof an upstanding rigid column, a mixing head mounted at l the upper portion of said column, said mixing head including a Ycentrally disposed cylindrical; depending housing, the lower portion of which` overlies the central portion of a relatively large zone of the base, the mixing head extending outwardly horizontally beyond the central housing and overlying all parts thereof, a motor mounted in said housing and having a vertical shaft, a" driving wheel on the upper end of said shaft,

'i mixing head', a driven pinion mounted on the upper end of each said mixing head, spring means mounted in said mixing head and connected to the bearing housing of each spindle for resilient-- ly and normally maintaining the driven pinion of each mixing spindle out of driving engagement with the mixing head, and toggle mechanism` connected to said bearing housing and to a sup-4 port within-said mixing head and including a depending actuator depending outwardly through an opening in the bottom of said mixing head and positioned adjacent the upper Wall of said cylindrical housing, and means on said cylindrical housing for guiding and supporting a cup thereon with the edge of the cup when so positioned adapted to contact the toggle actuatingv means for shifting the driven pinion on the upper end of a selected mixing spindle into driving contact with the driving wheel on the motor shaft.A

6. A spider casting for a multiple drink mixing machine comprising a one piece metal casting comprisingfa ilat -,ring having integral, upstanding, :spaced apart standards projecting therefrom, said ring-.a-t-.the base of-each standard having an outwardly extending :tongue projecting substantially beyond the-.outer periphery of the-ring, the bottom .-faceof the tongue being disposedabove the -plane of the xbottom face-of -tlie ring.

7.. A-.multiple spindle drink -mixer comprising a relatively sha1-lovr ibasefof :substantial area, said base at one side cent-rally thereof having -an upstanding, relativi-:ly tall Vcolumn, the .cross-:sestional f-area of said column -being relatively small compared to the 'cross sectional area -of the-base, said `upsta-nding -column having va 'rear Vrace that is substantial-ly at and the vertical plane .of which -lies :substantially .-ilush 1with :the rear-edge of .said ibase, said column :at -'a substantial ,distance thereof spaced -from :the base having a cylindricalhousingrextendingfoutwardly from the front ,-f-ace of -saidco'lumn and -overlying the-cem nal iportion-of the base .-inspaced :relation therefrom,` a motor mounted-in said `housing .and having :a central shaft extending vertically substantially fcentrally of the housing,` ami-Xing head mounted-on-the top-'of -thelcol-umn and extending outwardly at right angles -to said column and beyond the vertical side Walls vof said :cylindrical housing -to close the -top of fthe .housingand -overlying .the outer substantially vertical -wall -of Athe housing;.a relatively large driving wheel mounted on sthe iupper 4end of the motor Ashaft `withinrsa-id mixing housing, and -.-a .plurality -of `spindles mounted Within :said :mixing head, 'saidspindles depending :in -sp aced relation -around that portion of .the fmixing Yhead ioutstanding from :the housing :and :spaced fconcentrally about tthe Adriving Wheel, fsaidfspindlesfat their Tbottom portions .ca-r tying adrink mixing means, means -in .i-said .mixing head .-for v.sliittabl-y mounting the upper sends-.of said :spindles :and `means on the upper end fof each spindle -for rotating .-it from fthe .relatively large centra-l driving pulley, the router wall -of said 'cylindrical housing having spaced cup .-supporting means thereon-:and mechanism actuated b y the actor placing .the `Cup Vinsupported posi-- tion .on said housing forshif-ting the upper end oflany one of saidspindlesintodriving relation withlthecentraldriving pulley.

A multiple spindle drink .mixercomprising a relatively-shallovv .base f ofssubstantial (area, said basent `one-side Acentr-ally.thereof having .an .upstanding, relatively 1tall column, Athe -cross sectional .areaof said column being relatively small compared .to the cross sectional area of the base,

said upstanding..column having .a rea-r `.face thatis substantially iiush with the .rear .edge of said base, Asaid column having ya cylindrical housing extending outwardly from the front face e.of said column and overlying .the .Central portion ofthe base in spaced relation therefrom, a motor mountedin said housing landV havingla central shaft extending vertically centrally-,of the housing, a mixing .head mounted on .the .top of the column -and .extending outwardly at .right angles to Csaid columnand beyond-:the vertical side walls ofand Aclosing -the top :ci .said cylindrical housing, said head overlying the outer Cportions of the base that lie beyond .the vertical projections of .the peripheral walls of the housing, a relatively large driving wheel mounted on `the upper endof the motor shaft within said mixing head, and aplurality of depending spindles having `upperbearings movablymounted Within -said mixing headoutstanding from and yabove :the housing and spaced concentricallysabout the motor vdriving:wi-heel, said spindles (at :their bottom portionsy carryingdrin-k .mixing-means,.meansfinfsaid mixing-head for so shiftably mounting saidlspindles =and .a l`relatively -small driven-Wheel on :the upper lend .of `each .spindle .fior drivingly iconnectingzit-to .the relatively -large-centralfdriving wheel. the routerwa-ll -of said cylindrical housing having spaced-.cup supporting means-thereonand mechanisnr mounted in themixingshead land. actuated bythe actor placing the -cup in supported position on -said housing :for drivingly interconnecting VFthe'dr-iven lwheelionthe upper-fender one-of said spindles --w-ith Athe central driving wheel, :the top portion-of-.said mixing head being substantallyv flatfwhereby the base of .1an additional :unit may bermounted on the :upper -at surface ofsaid driving head With :the :dat -Wall .of said second device flush-With the i-lat lback lWall-.of-the column of the flirstv device.

1.9.. -A drink mixer -rcomprising a 'ba-se, :af-column upstandingtherefrom, a prime mover supported by thecolumn-.La-driving gear rotated-bythepri-me mover, a. mixing r-head disposed above-fthe motor toenclose `the driving-Wheel, a depending-mixing spindlehavingits upper-end carrying-a driven pinion .adapted -to be rotated by contact with the driving Wl-reel, a `bearing housing TorV rotatabl-y supporting the upper f-.end of the-:mixing spindle, spring :means for fresilientl-y :mounting the bearing head :on the mixing rhead, -said spring meansnormally.maintaining therdrifven pinion-'of the .miving spindle out -of :contact with .the vdr-iving wheel, rand va toggle mechanism -includingan actuating member depending -.downviardly belevithe .mixing `head and having. a .lower-end actuatable :upon -the positioning :of a cup fina-mixing position .with the --spindle projecting into fthe cup, and .'springmeans .-ior actuating said -toggleractuating memher,-said ,spr-ing means being :arranged normally to lock the driven pinion on the end of the mix-ing spindleout of' driving engagement.

10.. I-n :a drink mixer, .the .-,combina'tionioi fa base, .-a gprime lmover mounted -thereoinza nii-Xing headmountedion the base, a-driving wheeliinfsaid mixing head, sa .mixing stem :having fa bearing housing -disposed in .said-mixing head -Withthe stem depending therebelow in'spaced relation A=to said -base vand-'with the .upper portiorrof Athe-'stern provided with a driven ,pinion :adapted ato engage .the -fdr-iving Wheel, -a `bracket -in said fmixing .head, and spring mea-ns mounted -on :said bracket .and connected to said-beari-ng'-housing dor normally shifting said bearing housing :to acarry the driven j'pinion out of-contact with '-.the driving-wheeLand means Ifor shifting said bea-ring housingagainst the tension of said `spring -means to :position .said wheel into -fcontact `with :said driving wheel, said last -means including :anadditionalspringracting normally-to lock said -bearing homing, said mixing stem -and itsedriven Ipinion nGrmalIyout -of ,contact with said driven Wheel.

EARL l,23. PRINCE. JOHN .BROTHER-IDGE REEERENCES CITED The 4following"references are of record lin the file of 'this patent:

UNITED .STATES AT-ENTS Number Name Date 1,399,080 Ross Dec. 6, 1921 1,720,355 Scott Ju1y-"-9, 1929 1,813,502 .Madsen July-'7, 1931v 2,218,808 'Brotheridge Oct. 22,. v191i() 2,375,038 Regan May .1,1945 

